Mohd. Nor, Nur Umisyuhada and Lintang, Hendrik Oktendy and Endud, Salasiah and Leny Yuliati, Leny Yuliati (2015) Photocatalytic oxidation of hexanol over titanium dioxide supported on mesoporous silica. In: Advanced Materials Research, 26-28 Sept, 2015, Indonesia.
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Official URL: https://www.scientific.net/AMR.1112.176
Abstract
In order to improve the efficiency of TiO2, material with large surface area such as mesoporous silica is usually used as a support. In this study, the TiO2 was dispersed on mesoporous silica, MCM-41 by an impregnation method, meanwhile the bulk TiO2 was prepared by sol gel method. The X-ray diffraction (XRD) patterns showed that the intensities of diffraction peaks for MCM-41 decreased with the increase of the TiO2 loading, suggesting that the higher loading amount of TiO2 might lead to less ordered structure of MCM-41. The successful addition of TiO2 on MCM-41 was also confirmed from the fluorescence spectra, which the emission intensities of TiO2 and MCM-41 increased and decreased, respectively, with the increase of TiO2 loading on the MCM-41. The activities were compared between the bulk and dispersed TiO2 for photocatalytic oxidation of hexanol. Both bulk and dispersed TiO2 on MCM-41 showed good photocatalytic activity, while the MCM-41 did not show photocatalytic activity. Since the efficiency of photocatalyst can be defined by its respective turnover number (TON), the comparison between bulk and dispersed TiO2 on MCM-41 was made based on their TON values. It was revealed that the dispersed TiO2 on the MCM-41 with 5 wt% of TiO2 loading was the most efficient photocatalyst among all the samples.
Item Type: | Conference or Workshop Item (Paper) |
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Additional Information: | dispersed TiO2, hexanol, MCM-41 |
Subjects: | Q Science > QD Chemistry |
Divisions: | Science |
ID Code: | 61766 |
Deposited By: | Widya Wahid |
Deposited On: | 25 Apr 2017 08:01 |
Last Modified: | 09 Aug 2017 04:30 |
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